Raceway for commerical cargo body

ABSTRACT

A utility raceway for a commercial cargo body. The utility raceway includes an interior defined between a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side. The utility raceway also includes a plurality of internal utility cavities separated by at least one vertically-oriented flange extending between the first and third sides, a first living hinge formed between the first side and the second side, and a second living hinge formed between the second side and the third side. The first side is pivotable relative to the second side about the first living hinge and the third side is pivotable relative to the second side about the second living hinge.

BACKGROUND

The present invention relates to cargo bodies, and in particular, theplacement of utility (e.g., electrical, air, hydraulic, fuel, etc.)lines therein.

Commercial cargo bodies or trailers transported by trucks or othervehicles include a set of walls that enclose an interior space of thetrailer. Typically, the interior space is defined, on a bottom side, bya plurality of floorboards running a longitudinal direction of thetrailer. Raceways are used in conjunction with the floorboards to runelectrical and other lines through the trailer. The raceways protect thelines from the environment surrounding the bottom side of the trailer.

SUMMARY

In one independent aspect, the invention provides a utility raceway fora commercial cargo body. The utility raceway includes an interiordefined between a first side, a second side, a third side opposite thefirst side, and a fourth side opposite the second side. The utilityraceway also includes a plurality of internal utility cavities separatedby at least one vertically-oriented flange extending between the firstand third sides, a first living hinge formed between the first side andthe second side, and a second living hinge formed between the secondside and the third side. The first side is pivotable relative to thesecond side about the first living hinge and the third side is pivotablerelative to the second side about the second living hinge.

In another independent aspect, the invention provides a floor assemblyfor a commercial cargo body. The floor assembly includes a first utilityraceway, a second utility raceway spaced from the first utility racewaysuch that the first and second utility raceways define a spacingdistance therebetween, and a set of floor planks configured to span thespacing distance and, in cooperation with the first and second utilityraceways, define a load floor of the commercial cargo body. Each of thefirst and second utility raceways is operable to open and close toprovide access to respective interior utility cavities when the floorassembly is in a fully constructed state with the set of floor planks inplace. The set of floor planks consists entirely of interchangeableplanks.

Other aspects of the disclosure will become apparent by consideration ofthe detailed description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a first perspective view of a commercial cargo body.

FIG. 2 is a second perspective view of the commercial cargo body of FIG.1 .

FIG. 3 is a perspective view of a portion of a floor of the commercialcargo body of FIG. 1 .

FIG. 4 is a front view of the floor of FIG. 3 .

FIG. 5 is a close-up view of one side of the floor of FIG. 4 .

FIG. 6 is a perspective view of a raceway.

FIG. 7 is a front view of the raceway of FIG. 6 .

FIG. 8 is a perspective view of one side of the floor of FIG. 3 with araceway removed.

FIG. 9 is a front view of one side of the floor of FIG. 3 including afirst raceway.

FIG. 10 is a front view of another side of the floor of FIG. 3 includinga second raceway.

FIG. 11 is a plan view of a floor according to another embodiment of theinvention.

DETAILED DESCRIPTION

Before any embodiments of the invention are explained in detail, it isto be understood that the invention is not limited in its application tothe details of construction and the arrangement of components set forthin the following description or illustrated in the accompanyingdrawings. The invention is capable of other embodiments and of beingpracticed or of being carried out in various ways. It should beunderstood that the description of specific embodiments is not intendedto limit the disclosure from covering all modifications, equivalents,and alternatives falling within the spirit and scope of the disclosure.Also, it is to be understood that the phraseology and terminology usedherein is for the purpose of description and should not be regarded aslimiting.

The term “laterally” or variations thereof refer to a sidewaysdirection. The terms “top,” “upper,” “bottom,” and “lower” are intendedto indicate directions when viewing the commercial cargo body whenpositioned for use. The term “coupled” means connected to or engagewith, either directly or indirectly, for example with an interveningmember, and does not require the engagement to be fixed or permanent,although engagement can be fixed or permanent. It should be understoodthat the use of numerical terms “first,” “second,” “third,” etc. as usedherein does not refer to any particular sequence or order of components;for example, “first” and “second” portions may refer to any sequence ofsuch components, and is not limited to the first and second componentsof a particular configuration.

FIGS. 1 and 2 illustrate a commercial cargo body, embodied here as atrailer 10 for over-the-road use with a truck to transport large cargovolumes. In other embodiments, the commercial cargo body may be astraight truck, or the like. As shown, the trailer 10 is a semi-trailerconfigured for use with a road tractor (i.e., in forming a so called18-wheeler). Aspects of the invention are not necessarily limited tosuch a trailer 10, and aspects of the disclosure will be understood asalso applying to other trailers and commercial cargo bodies of variousconfigurations. The trailer 10 includes a chassis 14 having axles withmultiple sets of wheels 18, although similar commercial cargo bodies maybe provided with alternate rolling chassis configurations or none atall. The trailer 10 defines a length L in a longitudinal or transportdirection. The length L can be 53 feet in some constructions, althoughthe trailer 10 can be manufactured in other lengths greater than or lessthan 53 feet. Perpendicular to the longitudinal direction, the trailer10 defines a width W and a height H. The width W cooperates with thelength L to define a plan view footprint of the trailer 10, while theheight H of the trailer 10 is measured perpendicular to the footprint(i.e., perpendicular to the ground). Subtracting for wall thicknesses,the length L, the width W, and the height H cooperate to define a cargoreceiving interior 22 (FIG. 2 ) of the trailer 10.

The trailer 10 includes a first side defined by a first side wall 26, asecond side defined by a second side wall 30 opposite the first sidewall 26, a front defined by a front wall 34, and a rear 38. Wall panels42 may form walls that span the first side wall 26, second side wall 30,and front wall 34. Each of the first side wall 26, second side wall 30,and front wall 34 can be constructed of one or more wall panels 42.Further in some embodiments, a wall panel may wrap around a corner ofthe trailer and form parts of multiple walls (e.g., the front wall andone of the first and second side walls). All of the wall panels 42extend between a roof 46 of the trailer 10 and a floor 50 of the trailer10. Consecutive wall panels 42 can be joined together by a rail orspline 54 forming a joint that extends parallel to the direction of theheight H of the trailer 10 between the roof 46 and floor 50 of thetrailer 10. As shown in FIG. 2 , the rear 38 of the trailer 10 includesat least one door panel 62 provided to selectively open for accessingthe interior 22 for loading and unloading.

FIGS. 3 and 4 illustrate a portion of the floor 50. The floor 50 may bedefined as a load bearing floor meaning that the floor 50 is configuredto support the weight of cargo transported by the trailer 10. The floor50 defines a support surface 66 that supports the cargo and allows usersto walk within the interior 22 of the trailer 10 and/or load and unloadcargo with machinery such as a forklift. The floor 50 also defines afirst lateral edge 70, a second lateral edge 74 opposite the firstlateral edge 70, and a plurality of floor planks 78 extending betweenthe first and second lateral edges 70, 74. The planks 78 may extend theentire length L of the trailer 10 between the front wall 34 and the rearof 38 of the trailer 10. The floor may also include multiple rows ofplanks 78 between the front wall 34 and the rear 38 of the trailer 10.The floor 50 also includes a plurality of raceways 82. In theillustrated embodiment, the floor 50 includes a first utility raceway 82a adjacent the first lateral edge 70 and a second utility raceway 82 badjacent the second lateral edge 74. In other embodiments, the floor 50may include more than two raceways between the first and second lateraledges 70, 74. The first and second raceways 82 a, 82 b are disposed in aspace 86 defined between outer most planks 78 and rails 90. The rails 90support the wall panels 42 on an exterior of the trailer 10. In otherembodiments, such as the embodiment shown in FIG. 11 , the floor 50 mayinclude raceways 82 between planks 78. As such, the raceways 82 need notbe disposed between the outer most planks 78 and the rails 90.

The chassis 14 includes a plurality of cross-beams 94 that support theplanks 78 and the raceways 82 a, 82 b. The cross-beams 94 extend thewidth W of the trailer 10 between the first and second sides of thetrailer 10. Although only one cross-beam 94 is illustrated, the trailer10 may include a plurality of cross-beams 94 that are intermittentlyspaced apart along the length L of the trailer 10. In other embodiments,the cross-beams 94 may be omitted, for example, if a platen floorstructure were used instead of cross-beams and planks. One example of aplaten floor can be found in U.S. Publication No. 2017/0057561, theentire contents of which are incorporated by reference herein. Theraceways 82 a, 82 b and the planks 78 may be coupled to the cross-beams94 with fasteners, such as floor screws.

In the illustrated embodiment, eight floor planks 78 extend between thefirst and second lateral edges 70, 74 of the floor 50. In otherembodiments, the floor 50 may include more than eight or less than eightplanks 78 extending between the first and second lateral edges 70, 74 ofthe floor 50. Generally, each one of the plurality of floor planks 78 isidentical to the other planks 78 of the plurality of planks 78. In otherwords, the floor planks 78 are interchangeable with each other such thatany given floor plank 78 can be used in any given position. In someembodiments, the floor planks 78 may be constructed of natural orengineered wood, or a wood alternative such as a polymer resin compositematerial. In other embodiments, the floor planks 78 may be an aluminumextrusion. Further, the floor planks 78 may not be identical to otherfloor planks 78 and may be instead a mixture of different shaped floorplanks 78.

Moving to FIG. 5 , each of the floor planks 78 include a first laterallyouter edge 98, a second laterally outer edge 102 opposite the firstlaterally outer edge 98, and a central portion or body 106 between thefirst and second laterally outer edges 98, 102. The first and secondlaterally outer edges 98, 102 define respective laps or shelves 110 thatprojects laterally outwardly from the body 106. For example, from theframe of reference of FIG. 5 , the shelf 110 of the first laterallyouter edge 98 is a lower shelf that projects to the left and the shelf110 of the second laterally outer edge 102 is an upper shelf thatprojects to the right. As such, the joining of laterally adjacent planks78 includes mating or overlapping the shelf 110 of the first laterallyouter edge 98 of a first plank 78 with a shelf 110 of the second outeredge 102 of a second plank 78 in a shiplap arrangement. In otherembodiments, the planks 78 may be arranged so that the shelf 110 of thefirst laterally outer edge 98 is an upper shelf that projects to theleft and the shelf 110 of the second laterally outer edge 102 is a lowershelf that projects to the right. In further embodiments, the planks 78may include first and second shelves that each extend from the left orright respectively that are both upper shelves or lower shelves. In suchan embodiment, the planks 78 may be alternatively placed on the floor 50having one plank with upper shelves and an adjacent plank with lowershelves that overlap the upper shelves. In other words, the planks 78would define a T-shaped cross section which would allow the planks 78 tobe flipped relative to an adjacent plank 78 to create an alternatingplank pattern. Each of the planks 78 also define a thickness T. In otherwords, the planks 78 position the support surface 66 a distance from thecross-beams 94 that correlates to the thickness T. The thickness T maybe within a range between 1 inch and 1.5 inches. In other embodiments,the thickness T may be within a range between 0.5 inch and 2 inches.Each of the floor planks 78 also includes a lateral projection 114 (FIG.8 ) adjacent the shelf 110 of the first laterally outer edge 98 and alateral projection 114 adjacent the shelf 110 of the second laterallyouter edge 102. The lateral projections 114 extend parallel to and areoffset from the respective shelves 110, and the lateral projections 114may be configured as crusher beads that deform upon assembly of thefloor 50.

With reference to FIGS. 6 and 7 , each of the raceways 82 defines aninterior 118 that stores and protects one or more utility lines 120(FIGS. 9 and 10 ) for the trailer 10. For example, utility lines 120disposed within the interior 118 of the raceways 82 may include but arenot limited to electrical wiring for carrying electrical current to oneor more electrical devices, pneumatic hoses for carrying pressurized airto one or more pneumatic devices, hydraulic lines for carryingpressurized oil to one or more hydraulic devices, or fuel lines to carryfuel to fuel-burning devices. As such, the raceways 82 may open to allowaccess to the interior 118 to install and/or inspect, repair, or modifythe utility lines 120. As described in further detail below, eachraceway 82 can open to and provide access from the cargo-receivinginterior 22. The raceways 82 can selectively be opened to provide accessfrom the interior 22 even after the floor 50 is fully installed. Eachraceway 82 includes a first end 122, a second end 126 opposite the firstend 122, and a length L2 between the first and second ends 122, 126. Thelength L2 may extend the full length L of the trailer. Alternatively,the length L2 of the raceways 82 may extend partially between the frontwall 34 and the rear 38 of the trailer 10. In addition, the length L2may not extend the same length as the floor planks 78 along the floor50.

Moving to FIG. 7 , the interior 118 of each raceway 82 is defined by afirst side 130, a second side 134, a third side 138 opposite the firstside 130, and a fourth side 142 opposite the second side 134. The sides130-142 are generally formed orthogonally or perpendicularly to anadjacent side. As such, the overall profile of the raceway 82 isrectangular. In other embodiments, the sides 130-142 of the raceway 82may be angled relative to an adjacent side. As such, the raceway 82 maybe trapezoidal. The first side 130 includes two vertically-orientedalignment tabs 146 that project into the interior 118 of the raceway 82and a bead 150 adjacent an end of the first side 130. The third side 138includes two vertically-orientated load bearing columns or flanges 154that project into the interior 118 of the raceway 82 in a directionopposite the alignment tabs 146. The load bearing flanges 154 improvethe structural integrity of the raceway 82 when positioned for use. Theload bearing flanges 154 are positioned on the outside of the alignmenttabs 146 when the raceway 82 is in a closed configuration. Inalternative constructions, the alignment tabs 146 and the load bearingflanges 154 are reversed among the first and third sides 130, 138 sothat the load bearing flanges 154 extend upwardly from the first side130 and/or are reversed so that the load bearing flanges 154 arepositioned on the inside of the alignment tabs 146.

The fourth side 142 includes a recess 158 to receive the bead 150 of thefirst side 130. The bead 150 and the recess 158 may be defined as asnap-in lock, or in other words an interference fit latch, to secure theraceway 82 in the closed configuration. The lock or latch for closingthe raceway 82 is integrally formed by the material of the raceway 82(e.g., extrusion shape of the first and fourth sides 130, 142) withoutany extraneous parts. When closed, the raceway interior 118 may besealed from water intrusion, the only openings to the interior 118 beinglocated at extreme lengthwise ends. The fourth side 142 also includes anelastic member 162 or seal disposed on an exterior of the raceway 82.The elastic member 162 has a half-circle shape and creates a seal whenengaged with an outer edge 98, 102 of a floor plank 78. An overhang 166extends from the third side 138. The overhang 166 provides a handle oractuator that a user may use to gain access to the interior 118 of theraceway 82. Additionally, the overhang 166 extends to engage one of theouter edges 98, 102 of the outer most planks 78 on the floor 50.Specifically, the overhang 166 engages the projection 114 on the outeredges 98, 102 to secure the raceway 82 within the space 86 (FIGS. 9 and10 ). In some embodiments, the raceways 82 may include an aperture 168(FIG. 6 ) in any of the sides 130, 134, 138, 142 that allows a utilityline to extend out of the interior 118 for usage elsewhere. The aperture168 is spaced from both longitudinal ends of the raceway 82.

With continued reference to FIG. 7 , a first living hinge 170 a connectsthe first side 130 to the second side 134 and a second living hinge 170b connects the second side 134 to the third side 138. The first hinge170 a allows the second side 134 to pivot relative to the first side130. Similarly, the second hinge 170 b allows the third side 138 topivot relative to the second side 134. Pivoting of the hinges 170 a, 170b moves the raceways 82 from the closed configuration to an openconfiguration, in which a user has access to the interior 118 of theraceway 82. For example, a user may lift the third side 138 causing thethird side 138 to pivot relative to the second side 134 about the secondhinge 170 b. If additional access to the interior 118 of the raceway 82is needed, a user may further lift the third side 138 causing the secondside 134 to pivot relative to the first side 130 about the first hinge170 a. In the illustrated embodiment, each raceway 82 is produced as aunitary extrusion with a single extrusion process. The raceway 82 can beformed as a multi-material extrusion such that the hinges 170 a, 170 binclude a first hardness on the durometer scale and the rest of theraceway 82 include a second hardness on the durometer scale that is lessthan the first hardness. Providing the hinges 170 a, 170 b with a lowerhardness allows the hinges 170 a, 170 b to be flexible and resilientwithout sacrificing the strength of the other parts of the raceway 82.

The raceways 82 further define a plurality of internal cavities.Specifically, each raceway 82 defines a first internal cavity 174, asecond internal cavity 178, and third internal cavity 182 between thefirst and second internal cavities 174, 178. In other embodiments, theraceways 82 may include more than three internal cavities. The firstinternal cavity 174 is defined between a portion of the first side 130,the second side 134, a portion of the third side 138, and one of theload bearing flanges 154. The second internal cavity 178 is defined by aportion of the first side 130, a portion of the third side 138, thefourth side 142, and the other of the load bearing flanges 154. Thethird internal cavity 182 is defined by a space enclosed by thealignment tabs 146 and the load bearing flanges 154. As mentioned above,the raceways 82 are generally rectangular in cross-section, as such, theinternal cavities 174, 178, 182 are generally rectangular incross-section as well. However, in other embodiments, the internalcavities 174, 178, 182 may be circular in cross-section or include acylindrical race cavity to receive utility lines. Different types ofutility lines 120 may be disposed within the respective first, second,and third internal cavities 174, 178, 182. For example, the firstinternal cavity 174 may house electrical utility lines, the secondinternal cavity 178 may house pneumatic utility lines, and the thirdinternal cavity 182 may house hydraulic utility lines, although anyother defined layout is optional, including separation of a single typeof utility lines—for example maintaining different cavities for two ormore electrical lines that vary in their construction and/or usage. Assuch, providing a plurality of separate internal cavities allows a userto organize and arrange the utility lines 120 as desired.

The raceways 82 further define a height H2 between the first and thirdsides 130, 138. The height H2 may be within a range between 1 inch and1.5 inches. In other embodiments, the height H2 may be within a rangebetween 0.5 inch and 2 inches. In some embodiments, the height H2 of theraceway 82 may be equal to the thickness T of the floor planks 78. Assuch, the raceways 82 and the floor planks 78 may define a continuousfloor surface. However, the height H2 of each raceway 82 can be eitherless than or greater than the planks 78 such that the top surface of theraceway 82 when installed is either recessed from or extended proud ofthe floor surface defined by the planks 78.

As illustrated in FIGS. 9 and 10 , the raceways 82 a, 82 b may bepositioned with the first side 130 supported by the cross-beams 94 (FIG.9 , trailer road side) or the raceways 82 a, 82 b may be positioned withthe third side 138 supported by the cross-beams 94 (FIG. 10 , trailercurb side). As shown in FIG. 9 , the overhang 166 extends over the shelf110 of the first laterally outer edge 98 of an outer plank 78. A usermay lift the third side 138 of the raceway 82 a to gain access to theinterior 118 of the raceway 82 a. Conversely, as shown in FIG. 10 , theoverhang 116 extends under the shelf 110 of the second laterally outeredge 102 of an outer plank 78. A user may lift the first side 130 of theraceway 82 b to gain access to the interior 118 of the raceway 82 b.Therefore, the first and third sides 130, 138 of the raceways 82 a, 82 bdefine doors that allow access to the interiors 118 of the raceways 82a, 82 b. Which of the sides 130, 138 defines the door is a function ofthe orientation in which the raceway is installed. In the illustratedembodiment, the floor 50 includes a raceway 82 a adjacent the firstlateral edge 70 with the first side 130 supported by the cross-beams 94and a raceway 82 b adjacent the second lateral edge 74 with the thirdside 138 supported by the cross-beams 94. As such, the raceways 82 a, 82b are interchangeable between the first and second lateral edges 70, 74of the floor 50. In other words, the second raceway 82 b is positionedinversely relative to the first raceway 82 a on the respective lateraledges 70, 74 of the floor 50. Providing the raceways 82 a, 82 b to beidentical and interchangeable also allows for identical planks 78 to beused across the entire floor 50, rather than having any specialized endplanks.

During installation of the floor 50 within the trailer 10, the firstelectrical raceway 82 a is positioned adjacent the rail 90 on the firstside of the trailer 10 with the first side 130 of the raceway 82 asupported by the cross-beams 94. Similarly, the second electricalraceway 82 b is positioned adjacent the rail 90 on the second side ofthe trailer 10 with the third side 138 of the raceway 82 b supported bythe cross-beams 94. Next, an outer most plank 78 is positioned on thecross-beams 94 adjacent the first electrical raceway 82 a. The outermost plank 78 on the first lateral edge 70 of the floor 50 is then slidinto engagement with the first electrical raceway 82 a so that the shelf110 of the first outer edge 98 of the plank 78 is positioned under theoverhang 166. FIG. 9 illustrates that the shelf 110 can be pressed flushwith the fourth side 142 of the raceway 82 a, although a small gap mayremain. In addition, the overhang 166 of the raceway 82 a engages theprojection 114 of the plank 78 above the shelf 110. As the plank 78 isslid into engagement with the fourth side 142, the elastic member 162 isdeformed to create a seal between the plank 78 and the raceway 82 a.With the outer most plank 78 adjacent the first electrical raceway 82 a,additional planks 78 are then laid on the cross-beams 94. Each plank 78is slid into engagement with an adjacent preceding plank 78 by slidingthe plank 78 laterally until the shelf 110 of the first outer edge 98mates with the shelf 110 of the second outer edge 102 of the adjacentplank 78. The outer most plank 78 on the second lateral edge 74 of thefloor 50 (FIG. 10 ) is positioned last. As the last plank 78 is laid,the shelf 110 of the first outer edge 98 is slid under the shelf 110 ofthe second outer edge 102 of the adjacent plank 78 (not shown in FIG. 10), and the second outer edge 102 of the last plank 78 is pivoted toengage the fourth side 142 of the second raceway 82 b. The projection114 of the last plank 78 is positioned above (e.g., directly above andin contact with) the overhang 166, and the shelf 110 of the second outeredge 102 deforms the elastic member 162 to create a seal between theouter most plank 78 and the raceway 82 b. It should be noted that theabove installment of the floor 50 may be done in the reverse. In otherwords, the planks 78 may be laid in a direction starting with the secondraceway 82 b and ending with placing the last plank 78 adjacent thefirst raceway 82 a. In that case, the final plank 78 is pivoted downinto place after having its shelf 110 slid under the overhang 166 of thefirst raceway 82 a.

The utility lines 120 may be placed within the interior 118 of theraceways 82 a, 82 b either prior to installing the floor planks 78 orafter installing the floor planks 78. As described above, a user mayeither lift the third side 138 or the first side 130, depending on whichlateral edge 70, 74 of the floor 50 the raceway is positioned, to theopen configuration to gain access to the interior 118 of the respectiveraceway 82 a, 82 b. As a user lifts the access door provided by eitherthe first or third side 130, 138 of the raceway 82 a, 82 b, the bead 150disconnects from the recess 158 to effectively unlatch the door.Meanwhile, the first or third side 130, 138 pivots relative to thesecond side 134 about one of the hinges 170 a, 170 b to the openconfiguration. While in the open configuration, a user may place theutility lines 120 within the internal cavities 174, 178, 182 as desired.Once the utility lines 120 are organized as desired by the user, theuser then pivots the door relative to the second side 134 about one ofthe hinges 170 a, 170 b until the bead 150 is received in the recess 158to latch the door. When the bead 150 is received back within the recess158, the interior 118 of the raceway 82 a, 82 b is secured in the closedconfiguration. If access to the utility lines 120 is later desired by auser, the user may repeat the steps described above to gain access tothe interior 118 of the raceway 82 a, 82 b. Although described as fullyinstalling the floor 50 and then opening the raceways 82 a, 82 b toinstall the utility lines 120, it is also conceived to place the utilitylines 120 into the raceways 82 a, 82 b prior to installation of some orall of the planks 78. Further, the raceways 82 a, 82 b may be installedin their open configurations, and only latched following placement ofthe utility line(s) 120.

Various features and advantages are set forth in the following claims.

What is claimed is:
 1. A utility raceway for a commercial cargo body,the utility raceway comprising: an interior defined between a firstside, a second side, a third side opposite the first side, and a fourthside opposite the second side; a plurality of internal utility cavitiesseparated by at least one vertically-oriented flange extending betweenthe first and third sides; a first living hinge formed between the firstside and the second side; and a second living hinge formed between thesecond side and the third side, wherein the first side is pivotablerelative to the second side about the first living hinge and the thirdside is pivotable relative to the second side about the second livinghinge.
 2. The utility raceway of claim 1, wherein the first side and thesecond side are pivotable relative to the second side about therespective first hinge or second hinge from a closed configuration, inwhich access to the interior is inhibited, and an open configuration, inwhich access to the interior is permitted.
 3. The utility raceway ofclaim 2, wherein the fourth side includes a recess and the first sideincludes a bead received in the recess to secure the utility raceway inthe closed configuration.
 4. The utility raceway of claim 1, wherein theplurality of internal utility cavities includes at least a firstinternal utility cavity and a second internal utility cavity, the firstinternal utility cavity is defined between a portion of the first side,the second side, a portion of the third side, and the at least onevertically-oriented flange, and wherein the second internal utilitycavity is defined by a portion of the first side, the fourth side, aportion of the third side, and the at least one vertically-orientedflange.
 5. The utility raceway of claim 1, wherein the plurality ofinternal utility cavities includes a first internal utility cavity, asecond internal utility cavity, and a third internal utility cavitydisposed between the first and second internal utility cavities.
 6. Theutility raceway of claim 1, wherein the first and second living hingesinclude a first hardness on the durometer scale and the first, second,third, and fourth sides include a second hardness on the durometer scalethat is greater than the first hardness.
 7. The utility raceway of claim1, wherein the first, second, third, and fourth sides and the first andsecond living hinges are formed as a single, multi-material extrusion.8. The utility raceway of claim 1, wherein the first and third sides aregenerally orthogonal to the second and fourth sides when in a closedconfiguration.
 9. The utility raceway of claim 1, wherein the at leastone vertically-oriented flange includes a first flange and a secondflange extending into the interior.
 10. The utility raceway of claim 1,wherein the fourth side includes an elastic member disposed on anexterior of the utility raceway.
 11. The utility raceway of claim 1,further comprising an overhang extending from the third side past thefourth side.
 12. A commercial cargo body comprising a wheeled chassisand a load floor including the utility raceway of claim 1, wherein theutility raceway accommodates a plurality of utility lines disposedwithin the interior.
 13. The commercial cargo body of claim 12, whereinthe interior of the utility raceway is accessible from an interior cargoarea of the commercial cargo body.
 14. The commercial cargo body ofclaim 13, wherein the utility raceway extends an entire length of theinterior cargo area of the commercial cargo body.
 15. A floor assemblyfor a commercial cargo body, the floor assembly comprising: a firstutility raceway; a second utility raceway spaced from the first utilityraceway such that the first and second utility raceways define a spacingdistance therebetween; and a set of floor planks configured to span thespacing distance and, in cooperation with the first and second utilityraceways, define a load floor of the commercial cargo body, wherein eachof the first and second utility raceways is operable to open and closeto provide access to respective interior utility cavities when the floorassembly is in a fully constructed state with the set of floor planks inplace, and wherein the set of floor planks consists entirely ofinterchangeable planks.
 16. The floor assembly of claim 15, wherein thefirst and second utility raceways have identical construction.
 17. Thefloor assembly of claim 15, wherein the second utility raceway ispositioned inversely relative to the first utility raceway within theload floor.
 18. The floor assembly of claim 15, wherein each plank ofthe set of floor planks includes a first shelf defined on a firstlateral outer edge and a second shelf defined on a second lateral outeredge opposite the first lateral outer edge and wherein the first shelfof a first plank of the set of floor planks mates with the second shelfof a second plank of the set of floor planks.
 19. The floor assembly ofclaim 18, wherein the first utility raceway includes a first overhangthat extends over the first shelf of a first outer most plank when theset of floor planks is in place and wherein the second utility racewayincludes a second overhang that extends under the second shelf of asecond outer most plank when the set of floor planks is in place. 20.The floor assembly of claim 15, wherein the first utility racewayincludes a first door and the second utility raceway includes a seconddoor, the first and second doors are pivotable to allow access to theinterior utility cavities of the first and second utility racewaysrespectively.
 21. The floor assembly of claim 20, wherein the first andsecond doors extend parallel to a plane defined by a top surface of theset of floor planks.
 22. The floor assembly of claim 15, wherein thefirst utility raceway includes a first elastic member on an exteriorthereof and the second utility raceway includes a second elastic memberon an exterior thereof, wherein the first elastic member forms a sealbetween the first utility raceway and a first outer most plank of theset of floor planks and the second elastic member forms a seal betweenthe second utility raceway and a second outer most plank of the set offloor planks.
 23. A commercial cargo body comprising a wheeled chassisand the floor assembly of claim 15, wherein the first and second utilityraceways accommodate a plurality of utility lines disposed within therespective interior utility cavities of the first and second utilityraceways.
 24. The commercial cargo body of claim 23, wherein theinterior utility cavities of the first and second utility raceways areaccessible from an interior cargo area of the commercial cargo body. 25.The commercial cargo body of claim 24, wherein the first and secondutility raceways extend an entire length of the interior cargo area ofthe commercial cargo body.